problem in S11 plot in CST

[alaalemaryeen]

Hello,

I'm designing a monopole antenna in CST using SMA connector for feeding. The problem is with the results at 2 GHz, I've tried many settings but I'm getting the same results, any suggestion would be helpful!

Thanks
,

 

[thylacine1975]

Oh, now that's interesting! How did you do that?
Post your project file or at least a picture of your structure and we'll see if anything is obviously astray...

 

[alaalemaryeen]

Here I attached my structure picture.

 

[johnjoe]

Did you used adaptive meshing? I think you should first increase your meshing. Try and post your results and give some information about your setup.

 

[alaalemaryeen]

I'm designing a monopole using textile material and I've tried increasing the mesh size and using adaptive meshing, but still I'm getting the same results!

 

[johnjoe]

Can you show your drawing? Is adaptive meshing stopped by maximum number of iterations or is the desired accuracy reached?